Device for cleaning gas-valve seats



Nov. 8, 1927.

G. G. REIS DEVICE FOR CLEANING GAS VALVE SEATS Filed sept. 1v, 1921 2 sums-sheet 1 Nov. 8, 1927. 1,648,150

G. G. REIS DEVICE FOR CLEANING GAS vVALVE4 SEATS Filed Sept. 17. 1921 2 Sheets-Shet 2 lil Patented Nom 8, 1927.

" narra srArEs ,l GALE G. anrsvor DULUTHMINNEsoTAL DEVICE FOR CLEANING GAS-VALVE SEATS.

Appncaaon mea september 17, 1921.v serai No; `501,503.4

VThis invention relates to a new and improved devicefor cleaning gasv valve Seats 'and .more particularly to adevice of this character which may be operated Without loss of the fluid controlled by the valves and Without obstructing the valve passages.

'In av battery of by-product coke ovens there are installed pipes which draw the gas from vthe ovens into the lcollecting mains. vThe mains run transversely of the battery ofovens and valves are located at the junction of the pipes and mains.` The gas comes olf the ovens at a high temperature and carries considerable freecarbon in the form of soot or lamp black, and tar vapor.

This material is deposited upon the seat Vof the valve, and it is therefore necessary to periodically clean the valve seats. This must be done while the oven pipes and collecting mains are hot vand full of gas.

Attempts. have yheretofore been made to clean these valve seats by introducing bars through 'sinallrhand holes and knocking off `the carbon.` e

It is anobject of the present invention `to provide a valve cleaning device which is adapted for cleaning valve seats in the situation described or under similar .circumstances. v

It is a further object to provide a cleaning device which may be operated Without interrupting the flow of gas and without loss of gas.

An additional object vice which is operable from without the valve structure and which may be used While the pipes and valves are heated,V and in use.

It is also an object to provide anew and improved method of utilizing such a device in cleaning valve seats.

Other and `further objects will appear as the description proceeds.

Broadly, my invention comprises the provision of valve seat cleaning means operated througha closure; the latterbeing adapted -to take the place of the usual valve cover.

In a more specic form the valve cleaningV means is supported by a collar; the collar being threaded into the closure member in such manner that the cleaning device may be raised or low-ered relativeto the closure and may be rotated in the sleeve.

1 have illustrated a preferred embodiment of my invention in the accompanying drawings.

Figure 1 isa vertical cross section showis to provide a de-V ireise ing portions of coke oven apparatus with my invention applied thereto. p

- Figure 2v is an enlarged'vertical cross section ofthe cleaning apparatus associated with a valve, andl cover which maybe used inlinstalling my device. ,i f

Referring now to Figure 1;-the coke/'oven 4 connects to the stand pipe 5 and from this Figure 3 isa planv view of a temporaryv pipe 5, the pipe 6 leads to the vvalve 7. The valve 7 connects to the gas main 8. Inthe I structure shown, a pipe 9 leads through valve 1() to a second-,main 11. The valve 10 1s provided with the closure 12 through which passes the valve stem 13, carrying the valve member 14C. The chain 15 is connected to the valvey stem 13 and 'leads Over'lpulley 16 tothe counter weight17. The valve 7 is identical in construction withvalve, 10'.l

As shown in Figure 1,the parts of the?" valve 7 have beenl removedy and replaced by my cleaning device, which latter isl shown more in detail in Figure 2. e e. i

VReferring now to Figure 2, thevalve cover 12 `has been replaced by a cover member 18 in which is threaded the sleeve 19. The

sleeve 19 is provided at its upper Iend with the handle 20 by means of which it may be rotated to move it upwardly or downwardly relative tothe cover member 18.

Passing through the sleeve-19 is the shaft 21 which has fixed thereto the collar y22 beartated. To the lower end of the shaft 21 is keyed the tool holderV 24 which carries the y cutting or cleaning tools 25. The tool holder 24C is'provided upon its upper face with the boss 26 which bearsv against the lower end of the sleeve 19, and upon its lower face with the boss 27. The vboss 27 is equal to or greater than the cutting tools 25 in depth.

The temporary cover shown in Figure 3 is an imperforate disc 28 of a size sutlicient to close the valve cover opening. AIt is provided vvith a lug or extension 29 to facilitate handling it.l s

In theuse of my device the securing vmeans for the valve cover 12 are loosened and the cover and valve arequickly removed. kAs

the change can be made so rapidly that the amount escaping is negligible. The cleaning tool is next placed uponV the ,plate 28, the boss 27 resting uponthe plate. The plate 28 is then quickly withdrawn and the cutting tool slips within the valve chamber and theV cover member 18 opening. The sleeve 19 completely closes the' valve is `next rotated by means of the handle 2O until the cuttingtools 25 are brought toV bear against the valve seat 30 as Vindicated in dotted vlinesy iny Figure 2*.' The tools are then rotated by means of the handle 23- to clean the valve-seat. The toolslniay be fed downwardly duringthe cleaning by screwing down the sleeve 19.y -In removing the tool the'process carried out in putting it inplace is gone through in reverse order.

The use of the temporary cover member 28,

i while not absolutely necessary is highly de- I In the use of my..device,

sirable in order to minimize the escape of gas while removing thev valve andv getting the cleaning device inplace. f Y the valve seat may be cleaned much more uniformly than is possible by the insertion Vci bars as is` now customary. Further, by the use of cutting and scope of the following claims.`

I claim: v 1-. In avvalveseat cleaningdevice, a cover member adapted to replace the valve cover, a

sleeve threaded in the cover, and a cleaning member supported in the sleeve, means adapted to rotate the sleeve to move 1t in and out or' the cov-er and means adapted to.

rotate the cleaning` member relative to the sleeve.

2. The method (if cleaning valve 'seats comprising removing the valve cover and valve member, temporarily coveringy the opening, positioning a cleaning apparatus onv the said covering means, withdrawing the. covering means and quickly inserting the apparatus closing the valve cover opening by exterior ofthe valve.

3. A valve seat cleaning device, compris .ing a cover nieinber and a cleaning member carried by the cover member and adapted to engage the valve seat, said cleaningA member being less in area than the valve opening whereby gas may passthrough said opening 'during the cleaning operation.

4. In a valve seat cleaning device, a cover member adapted to replace the valve cover, l

a sleeve threaded in the cover member, a shaft supported in said sleeve and rotatable `ineans of a portion of said apparatus and operating the cleaning apparatus trom the ,50

therein, atool holder carried on the lower l .end of said shaft, valve seat engaging tools extending downwardly from the holder, and a central -boss on the holder extending downwardly notless than the depth of the tools.

Signed at Duluth, Minn., this 9th day of Sept., 1921.

- v GALE e. Reis. 

